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Institute for Geophysics
Department of Geological SciencesBureau of Economic GeologyInstitute for Geophysics
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UTIG RESEARCH PROJECTS ARCHIVE

Antarctic Peninsula
Neotectonics and Volcanism



Through December 11, Larry Lawver is chief scientist on a cruise aboard the R/V Nathaniel B. Palmer to investigate portions of the southwest Scotia Sea and Bransfield basin. The abstract from his NSF -funded proposal summarizes some of the objectives of the 41-day cruise. The program director has coupled Lawver's program (chiefly seismic and swath bathymetry) with that of Gary Klinkhammer (Oregon State University) who is studying the water chemistry in hopes of identifying hydrothermal plumes associated with active volcanism in Bransfield basin. Weekly reports from the cruise, including images, are available for the following weeks:

Week 1 transit from Punta Arenas, Chile, surveying the Shackleton Fracture Zone Ridge, Bransfield volcano
Week 2 swath mapping, early ZAPS sled work in Bransfield basin, rendezvous with the Polar Duke
Week 3 exciting ZAPS results, seismic in the souhwest Scotia Sea, cores, bottom photos, dredging
Week 4 outing to Base Frei, Bransfield seismic, Deception Island, Thanksgiving in transit


The science and science-support personnel on the ship are a diverse group. Lawver's team includes:

Marta Ghidella Instituto Antartico Argentino gravity, magnetics, and navigation data reduction
Jim Lundy UTIG seismic work, side scan data processing
Amelia Shevenell Hamilton College sedimentology of core sediments
Ben Sloan UTIG multibeam data processing, sediment coring, web page
Steve Stevenoski Wisconsin Rapids, WI high school science teacher sponsored by NSF to participate in the cruise
Dick Von Herzen Woods Hole Oceanographic Institution marine geophysicist and Alvin submersible veteran

Mark Wiederspahn UTIG seismic acquisition, underwater photography


About these reports...
These reports are prepared weekly aboard RV Nathaniel B. Palmer. Larry Lawver and co-authors write the text. Ben Sloan generates the graphics, some by transfer of video images from a camcorder to a Silicon Graphics workstation (see Tips for Sailors). He then merges the images with an editted version of the text and rolls it all into HTML. Both text and images are electronically mailed (via satellite) to Lisa Gahagan at the Institute for Geophysics, who puts them on the UTIG web site from where you, gentle reader, access them. That's Clarence Island at the top of the page.
BJS 11/17/95

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